Improvement in oil-still



N. PETERS. PHOTO-LiTHOGRAPHER WASHINGTON D C o New.

gaat i e Lette/rs Patent No. 105,683, dated July 26, 1870.

IMPRovMENT IN Yornsrrmi..

TheA Schedule referred to in. these Letters Patent and making pay: 0f the lame To all whom it may-concern; 4

Be it known that I, J oHN HOFFERBERTH, of Baltimore, in the county of Baltimore and Stat-cof Maryland, have invented anew and useful Improved `Oil- Still;. and I do hereby declare that the followingv is a full, clear, and exactdescription thereof suicient to enable those skilled in thevartto which my invention appertailns to make and use the same, reference being,I

had to t'he accompanying Adrawing making part of this specification, and to the lletters land vfigures. marked thereon. l i

The nature oi' my invention consists in providing an oil-stil1 with ashcrt worm, for the purpose of allowing gasoline, andv other inflammable products of distillation,to escape without combining with the refined oil;

i also, in connectingthe long worin at a point below the top of the still, and providing a means for preventing the. oil from ascending higher than suoli point of con nection. l Y

In the` drawing- Figure l is. a side elevation.

Figure 2 isa top view.

Figure`3 is a transverse vertical section.V

The still'ismade in any suitable form, Vpreferably that of a flattened cylinder, and is placed in a horizon.- ial posit-ion over the furnace. The worm is made in the ordinary form, and of` any suitable length.

It is connected lto the still A at one end, at or near the center, and, at la short distance from the point of connection, it is provided with a two-way cock, B.

Attached to the top of the still is a connecting-pipe, C, which is provided with a two-way cock, D, and which connects with the worm at a point beyond the cock B.

In the rst turn of the worm I attach a pipe, E, in

such apposition as to conduct the products of distillation from that portion of the worm.

'At the point of attachment of the pipe E isa threeway cock, F,'which`,` when in the', position shown in.. the drawing, allpws the vapor of distillation to trav,

erse thcutire lergthofthe worm, and, when perpendicular to-that position, it cuts oli' communication with'Y the portion ofth'e worm beyond it, and opens communication withthe pipe E'.

When the processof VVdistilling is rst commenced; the cock B is closed,-tl1e cock D is opened, and the,

cock E is turned in a. position perpendicular to that shown in the drawing. The first products of distillation are conducted away bythe pipe E, until'the gasoline and other indamluablevapors have all been ex'- t-racted, when the -cock'F is'turned in the position shown in the drawing, and the products of distillation are made to traverse the entire length of the worm.

When the oil in the still lbecomesvexhausted to a I point below the center, thecock B is opened and the cock D is closed, and the products of distillation leave -tliestill at the end instead oi' the top, the oil being 'prevented from rising'too high in the still 4by means of anges a a, projecting from the sides, as shown `in gs. 2 'and 3.v 5

What IV claim as new, and desire to secure by Letters Patent, is-- -1- .4 The short worm for the esca-pecl' gasoline,- when constructed and operating as shown and described.

2. The flanges c, arranged as shown and described, for the purpose specilied; l

A JOHN HOFFERBERTH. Witnesses:

E. E. BROWN, M36. thinex-mnt.v 

